Method for wrapping first aid dressings



H. GANz Oct. 13,1942;

4 METHOD FOR WRAPPING FIRST gun DRESSINGS 2 Sheets-Sheet 1 Filed Jan. 31, 1940 0st. 13, 1942, H. G ANZ 2,298,363

METHOD FOR WRAPPING FIRST AID DRESSINGS Fi le d Jan. 31, 1949 2 Sheets-Sheet 2 Hem 519122 g Y W Patented Oct. 13,

Jilin-matron WnArrmG'Fms'r nnnssnms All) i Hem-sc n Bldgeficld'Park,N. 1., assignor to A Johnson & Johnso n, New Brunswick, N. 1., a

m le? jhl w y Applicationlannary a1, 1940, Serial No. 316,664

. The "invention relates to methods of and-inachines or devices for wrapping articles as separate units and is particularly 'addrcssed. to,the

' problem 01' wrapping. and sealing soft. 1ml flat objects ofsgenerallyrectangular form, such as surgical dressing units comprising a strip of surgical adhesive and a complemental absorbent pad or dressing. Articles of this type are more or -less"conventional and are:extensively"used as emergencyp'or first-aid dressings in tires-treatment of 'minor cuts and other injuries; It is desirablefthat they reach the consumer in a sterile I state andthis' requires. complete individual wrapping andsealin'g; It is further desirable that this be'done by:machine toikeeppace with the machine production of the dressings and to eliminate *theldrawback' of manual handlingand its effective sealing of commodities. oft-he; nature 6 stated with 1' particular emphasis .:on first-aid dressin'gsfi I ="-'I'he -natur e, characteristic features and scope 10 claims. (01. 93 -3) Fig. 5 is a section on line 55 showing an advanced stage of the. side folding operation in which the second flap is closing upon the active paste surface of the first flap.

Fig. 6 is a section on line 68 showing the lapped side flaps undergoing squeezing by the rolling instrumentalities which transmit the side wrapped article to the wrapper cutting of! device.

Fig. 7 is a section on line 1-! showing the wrapped article on the cross conveyer before the end closing operations. 7 r

Fig. 8 is a section on line 8-4 showing the bead forming or initial end closing operation.

Fig. 9 is a section on line 9- 9 showing the application ofpaste for securing the beads.

Fig. 10 is a section on line l0-'-l0 showing the beads or turned end edges being squeezed to place to effect the first end sealing.

Fig. 11 is a section on line ll-|| showing the formation of the end flaps. r

Fig. 12 is a section on line I2--l2 showing the pasting operation preliminary to sealing of the end flaps.

Fig. 13 is a section on line l3-.i3 showing the final operation of closing down and sealing the end' flaps. I

Fig. leis a perspective view of an article completely wrapped and sealed in accordance with the invention, more particularlyshowing the cross reinforced or stiffened ends to facilitate cross tearing of the wrapper in order to remove of the invention more readily will be understood from the following description taken in connection with the accompanying drawings,forming a part hereof, w'herein I Figure 1 is a schematic representation in part I F side elevational and in part plan, theelevational part showing instrumenta'lities for contemporaneously feeding continuous strips of first-aid dressings and wrapping material, spotting the dressings, side folding the wrapper, p'asting the side folds, and cutting of! the leading side wrapped article; and the plan showsithe cross conveyer and instrumentalities for performing the various operations for completingthe folding and sealing. i i

Fig. 2 is an enlarged sectional view-on line 2-2 and sho as the initial stage of-theisidefolde ing operation. 1 I Fig. 3 is a section on line 3-3 showing one sideflap nearly ciosed upon the dressing.

the first-aid unit.

material, comprising surgical adhesive tape and absorbent pads ,6 aifixed at intervals to the ad- I I Fig. 4 is a section online 4-4 showing the first flap fully closed upon the "dressing and tiperated on by a paste depositing device.

, hesive face thereof, is continuously fed from rolls 1 over suitable tension and guide rolls 8, 9, and

the tape appropri'ately between its padded in tervals. Wrapping material, which may be waxed 7 paper, "or any other suitable fabric, is fed contemporaneously and, likewise, in the form of a continuous strip l2, and is guided over rolls II and H to a position below the tape cutting device II and tape guiding and spotting rolls IS. The arrangement is such that the paper or other wrapping material is fed faster than the tape or dressing material whereby the units of the latterare' appropriately spotted or spaced on the v paper, for example, one inch apart.

, The strip of wrapping material with the first- ,aid units supported thereon, in the manner and relation stated, is caused to traverse a troughiIO, to a suitable cutting device II which severs 2 greases like guide It whose side wings ii are designed the units upon a travelling strip or wrapping to initiate the side folding or the wrapper, the material, subjecting the wrapplns material with feed rolls I8 and I9 exerting appropriate shape the spotted units thereon to a pressln8 operation. retaining pressure on the superimposed parts or wrapping and sealing the" units with provision the stock and wrapping material during the upfor end flaps, severing the interconnected end bending of the side flaps and 2|. Flap 2| is flaps, reiniorcins the end flaps by beading the then closed down upon the stock by an undercut end edges thereof. and folding and sealins th former 22. A dipping roller 23, and its follower n 1 898 w e bee tumed 24, supply paste or glue from a tank to a aste- 4. Method for the complete wrapping and sealdepositing roller 26. As shown in Fig. 4 the lat- 1 ins of first-aid units, which comprises spottins ter is preferably formed with a relatively sharp the s p a vel s stri of wrappins V or knife tread 21. so that it delivers a relatively mflterihl, Slim -G s the w p s material w narrow line of paste upon the top surface or the the spotted t nthereon to a pr s p an. closed fla :0. Thereupon the outer na 2| is wrappins the units while supporting them against closed over to sealing position by a side former 15 deformation. disconne ting the leading unit from 28. and both flaps are then effectively closed and t n xt adiac t un and sealins the end have sealed by passage through the reed rolls 2!, The method 0! p ly w flpp l Ind Fig, 6. sealing first-aid units, which comprises the steps After the sealing of the side flaps the wrapped '0! sliottlnl u s 0! fi mil-r181 P 1 Strip stock passes to wrapper cutting device lll which go 01 1 91 m in D relation, W

severe the wrapped stock appropriately to prothe m lfl l m er w t t u ts h reon, vide for end flaps and then delivers the wrapped one 0x thl ,ltde margins of the 99 units upon a cross conveyor Ii equipped with suit-; mltm'htl 9 imit. 99 3 8 paste to e 01 able guides or gripping devices 32 for proper hansaid side margins, closing the other side mardling oi the units during the final sealing opera- 25 sin ulpon the first side margin. severins h tions. ping material between the units, and folding The first 01 such operations is the crosswise and the end flaps t Q PP I stiflenlng or reinforcing '01 the end flaps or clov r a sures 33 by beading their end extremities. At 6. The method 0! compl ly pp fl Ind the station, Fig. 8, there are coordinate forming so 888-11138 fi units. w h co prises the Ste devices 34 and 35 for forming the heads 3!. At of wetting first-aid units in spaced relathe next station, Fig. 9, paste depositing rollers tion upon. a strip of'wrapping material, subjectfl lay lines of paste immediately adjoining the h wrlpnins mtcrl an p ted Jmite beads 35 which are thereupon pressed down and WIN"! to 8 9113851118 Operation, 01081118 e d sealed with relation to the wrapper by, for examas t 0f the wrappin m teri l upon the unit. pie, rollers as as shown in Fig. 10. pn y ns paste to o e of th s de ars clos- At the next station, as more particularly shown in: the other side margin upon the first side in Fig. 11, the beaded end flaps is are struck up t lieverins t ew ppins terial between by forming devices 40 and II. The next operathe W ben i g the severed ends 0! the wraption, as shown in Fig. 12, is the application of 40 pins material. and lold s a d flllns the beadpaste lines crosswise oi the wrapper substantially ed t fl p 1 immediately adjacent the flaps 39, as by the use 7. The method or oomp hr wrappins and of paste rollers 42. The end flaps a are then s s fi ts. which pri the ep closed down and sealed with relation to the wrap- 0f IP fl t-l1d units upon wrappins m per. as at 43, through the medium or ressing teriall iii-spaced relation, subjecting the wrapinstrumentalities l4. a ping material and units to a protein: Operation. The completely wrapped and sealed article is 3 8 one side marlin of the wrappihs'mlaterial shown at 45 in Fig. 14 and it willbe understood P h u epo tlns longitud n ly her that the beaded ends of the wrapper provide d a relatively narrow line or bonding substance. quate transverse crosswise support to permit the to cl ing the otheral l Den the un1t,,|eaicrosswise tearing of an end flap thereby simplii in: the two flaps together, severing the wrapping ing the removal of the first-aid unit. material between the units, and iolding, and

.as new is: 8. The method :0! completely wrappingmnd 1. Method for the complete wrapping and seal-- leh hs limp. flat first-aid units, which comprises ms of first-aid units, which comprises spotting the ps or sp ims the. first-aid units in spaced the units upon a treyelllns strip of wrapping relation upon a ehntinueue s p of w ppi s material, subjecting the wrapping material with -t i i az e s t d units and wrapthe spotted units thereon to a pressing operation, P 8 eri to a, pressinl p i n. 8 18 1 iolding and sealing the side margins of the strips so e h m rtin: 0f the wrappin m terial to with relation to the units, dividing the wrapping e vely close upon 8nd l nsitudinall! seal material in the inter-spotted areas, and folding he units. severi s th mont s m ri l at a and sealing the end flaps. point between the spliced units and sealing the 2. Method for the complete wrapping and sealend 311 0! the mpt ins mate 'h ing or first-aid units, which com rises spotting es 9-1'he' method or comple w appl sa d a the units u on a travelling stri of wrapping l' fi unltenvhleh comprises t e step material, subjecting the wrapping material with sp ttlnl first-aid units in spaced relation the spotted units thereon to a pressing operation, upon a continuum strip mppins materi wrapping and sealing the units with provision for 61 8 th si e marginal of the wrapp s m end naps, severing the wrapping material" at the rial longitudinally about the spaced units while interconnected end flaps, reinforcing the end P9 8 the unite 9 the 'w hpp l mi ri -l flaps by beading the end edges thereof, and tolda ai d l r h, l flh'lnl h wrap in mling andsealing the end naps. 0 terial at a point between .the spaced ends or the in: of first-aid units, which comprises spotting l5, flaps of th s wraith material.

Having described the invention what is claimed l l the e h l 0t t ew vpi s mat rial.-

8. Method forthecomplete wrapping and seal- .apottedunits and i! dim: and sealing the end 10. The method of completelywrapping and sealing limp, fiat first-aid units, which comprises feeding individual units to a continuous strip of wrapping material, feeding the wrapping material at a rate faster than the feed of the first-aid units to cause the units to be spaced on the wrapping material, subjecting the wrapping material and units thereon to a pressing operation, folding one side margin of the wrapping materially longitudinally over the material, applying a thin line of paste to one of the side margins of said wrapping material, folding the other side margin of the wrapping material longitudinally over the first side margin and pressing the two margins together, severing the wrapping material between the units and folding and sealing the end flaps of the wrapping material.

HENRY GANZ. 

